Fox Speedframe Pro Sense Mips Bike Helmet - 2026

Performance-focused open-face trail helmet

Designed with input from our pro mountain bike athletes, the Speedframe Pro Sense Helmet has earned Virginia Tech’s best rating (5 stars) in its Bicycle Helmet Ratings program for a reason. This top-tier open-face mountain bike helmet offers a market-leading feature set to keep you protected every time you hit the trails.

• Features Mips® Air Node Protection System
• BOA® Fit system for micro-adjustability
• FIDLOCK SNAP helmet buckle provides quick and secure entry and exit while wearing gloves
• Removable, washable Ionic+® liner is antimicrobial and manages odor while wicking moisture away from the head
• Optimized venting with channeled, in-molded EPS provides efficient cooling
• One hand adjustable visor is compatible with sunglasses and goggles
• Sunglass specific storage solution

Size

• Sizes: small, medium, and large (see size guide for measurements)

• Size	Head Size	Hat Size	Weight
  S	20.1-21.7"	6 3/8-6 7/8"	330±33 g
  M	21.7-23.2"	6 7/8-7 3/8"	350±35 g
  L	23.2-24.8"	7 3/8-7 7/8"	370±37 g (AS/EN certification); 390±37 g (CPSC certification)

How to Dial Your Fit

• BOA® Fit System - counterclockwise to loosen, clockwise to tighten - allows for a precisely dialed fit. Adjust while wearing the helmet
• Back cradle: four points of adjustment move the cradle up or down your head to ensure the best fit possible